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Finding the Fourth Proportional to 63,396, 95,078.59 and 21,265.16

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Solution

The fourth proportional to 63,396, 95,078.59 and 21,265.16 is: 31,892.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,396 : 95,078.59 = 21,265.16 : x
  2. Step 2: Convert to fraction form
    63,396/95,078.59 = 21,265.16/x
  3. Step 3: Cross multiply
    63,396x = 95,078.59 × 21,265.16
  4. Step 4: Simplify right side
    63,396x = 2,021,860,900.37
  5. Step 5: Solve for x
    x = 2,021,860,900.37/63,396
  6. Step 6: Final answer
    x = 31,892.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.